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How does changing my 75 gallon tank over to a damsel tank sound to everyone?? My lfs just received a big shipment of all different types of damsels and they really vary between a lot of colors and are always very active!

The guy at my lfs told me the name but I forgot! Uh oh!

Just started noticing this last week! I think it is, so in this case what do I need to do to resolve this problem?

Just bought this Kenya tree last week and the next day it fell off the rock but then I secures it in a tight place towards the top of the rock and It has been sitting there for about 2 days and still won't open, is it getting too much light at the top of the tank?

I've read on here a lot of people doing mods to their BioCube aquarium, are they necessarily or are the tanks good enough to support reef life as they come?

I'm looking to do softies and one lps in a 5-10 gallon aquarium, not sure which size yet. How would these do? Should I buy both of them, just one, or is it not worth my time?http://dallas.craigslist.org/ftw/hsh/3149416761.html

I just emptied out this tank this morning and I will be adding sand, live rock and saltwater tonight. But what light can I put on it? I will have a marineland penguin 125 on the back for filtration and I was told I don't need a protein skimmer as long as I do my weekly water changes like I...

I have a 6 gallon bowfront aquarium that is currently housing 2 guppies haha a couple recently died of age. I have a canopy for it but I think it would be easier to get a light for it without the hood on it. I know i will need a protein skimmer but now it has a marineland penguin 125 HOB filter...

IM talking about the little white things. The third picture makes them look like stomatella snails but they are definitely not that

Tank has been up an running for about 9 months and just this past month I've been starting to see some hair algae growth, what could I do to get rid of this nasty stuff? I've heard of using emerald crabs(I think that's the right crab) but I've heard that they sometimes harass fish as I have a...

I have had 3 fish sucked into my powerhead so I finally decided to put a filter sock on there. Will this be okay? I don't want to burn out the motor, I don't think it will but I want to be sure. The right side where the water is being pushed is left open but all the sides where it is sucked...

My dad was traveling back from Florida and he stopped in Louisiana for gas(i think) and found a pretty shell on the concrete he picked it up and inside there was a hermit crab! He says it's about 2-3 inches, I haven't seen it yet but I'll post a pic when I do. Could I add him into my 75 gallon...

Before I tell everyone how much he has and what all of his equipment is, how many fish do you all think could fit comfortably in a 20 gallon? He has his way overstocked!

I just bought an Ocellaris and a Ocellaris misbar clownfish. Will these pair up? They are very small maybe 1-1.5 inches each. I'm going to be putting them In a 75 gallon and will be adding a torch coral soon and the only other coral is a cauliflower colt.

I recently purchased a couple GSP frags at my lfs and they stayed on the rocks for a couple days but now they won't stay on... Ive heard of buying a reef safe glue that sticks them to the rocks does that work well? And what about a rubber band? I don't have any of that glue right now so would a...

My lfs did a test on my water yesterday an told me it took 18 drops to get to yellow! They tested on a KH API test kit...I thought for a reef aquarium alkalinity was supposed to be 8-12 but they said 18 was low! I don't have an alkalinity test kit but I'm guessing I should go get one soon! My...

Last Monday I did a 10 gallon water change when my nitrates were at 40 ppm in my 75 gallon so I did a 10 gallon water change and today I tested and now it's at 10 ppm! I don't think a little 10 gallon would've dropped it that much? I have gotten some algae over the last week and phosphates are...

Is this yellow stuff on my live rock a sponge, if not what is it? It started as a tiny spot and now has spread all over the rock and bigger spots

I have a 20 gallon standard reef tank and before I did my research before I purchased things I bought a blue velvet for the tank not knowing they needed 30 gallons! So I finally finished cycling my 75 a few weeks ago and now I'm ready to move him there How can I catch this fast little guy?? I...

Many of you helped me with converting my sump into a refugium but now my friend is setting up a reef tank! He's not sure in either a 75 or a 55 but he wants to use a canister filter, I personally don't like those, because they are so high maintenance! So I talking him into building a sump but...

What kind of coral is this? Friend is taking apart his tank and gave this frag to me but doesn't remember the name! Need to know where in the tank to put it!

I have a 75 gallon with a 20 gallon sump/refugium and I am wondering, is a UV sterilizer worth the money? I definitely do not want my fish dying, so if it is worth it, how many watts would be best for my size of a tank and sump?

I have been swing more and more of these little things in my 75 gallon tank! There is nothing in there now but what would eat these things or what can I do to get rid of them? One or two was okay but now their pretty annoying!

Does anyone think this fixture on Craigslist would be good enough for a 75 gallon planned reef tank? From the lowest spot in the sand bed to the top of the water is 19 inches...there are no corals in the tank now because I want to get a new light before I add anything...I want to be able to grow...

Bought it from my lfs that told me it was a toadstool leather but aren't their different types? If there is which one is this?